WO2016208843A1 - Dispositif flottant de génération d'énergie houlomotrice - Google Patents

Dispositif flottant de génération d'énergie houlomotrice Download PDF

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Publication number
WO2016208843A1
WO2016208843A1 PCT/KR2016/002127 KR2016002127W WO2016208843A1 WO 2016208843 A1 WO2016208843 A1 WO 2016208843A1 KR 2016002127 W KR2016002127 W KR 2016002127W WO 2016208843 A1 WO2016208843 A1 WO 2016208843A1
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WO
WIPO (PCT)
Prior art keywords
wire
unit
floating
energy
anchoring
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Application number
PCT/KR2016/002127
Other languages
English (en)
Korean (ko)
Inventor
성용준
조민수
김정희
Original Assignee
주식회사 인진
성용준
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Filing date
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Application filed by 주식회사 인진, 성용준 filed Critical 주식회사 인진
Priority to EP16814556.3A priority Critical patent/EP3315766A1/fr
Priority to US15/739,954 priority patent/US10590905B2/en
Priority to CN201680038598.0A priority patent/CN107896503B/zh
Publication of WO2016208843A1 publication Critical patent/WO2016208843A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B77/00—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms
    • B63B77/10—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms specially adapted for electric power plants, e.g. wind turbines or tidal turbine generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1885—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is tied to the rem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/502—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers by means of tension legs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • F03B13/1865—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem where the connection between wom and conversion system takes tension only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/12—Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes, or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B2021/505—Methods for installation or mooring of floating offshore platforms on site
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/02—Buoys specially adapted for mooring a vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/50—Kinematic linkage, i.e. transmission of position
    • F05B2260/505—Kinematic linkage, i.e. transmission of position using chains and sprockets; using toothed belts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the present invention relates to a high efficiency and low cost floating wave power generation device that converts and absorbs kinetic energy of waves into usable energy forms.
  • Waves are a high-density energy source among renewable energy sources and are attracting attention because they can be generated 24 hours a day.
  • Korean Patent Registration No. 10-1260037 discloses a technique for a wave power generating structure, but the wave energy harvesting efficiency is limited and the coastal topography and the depth can be limited.
  • the present invention provides a floating wave power generation device for converting kinetic energy of waves into electric or hydraulic energy, and provides a high efficiency and low cost floating wave power generation device.
  • the floating wave power generation apparatus of the present invention a floating unit floating on the sea surface;
  • the delivery unit and the energy unit are provided inside the floating unit.
  • the floating wave power generation apparatus of the present invention a floating unit floating on the sea surface; A wire that securely floats the floating unit; An anchoring part fixing one end of the wire to a sea bottom; A safety coupling separating the wire and the floating unit to relieve excessive tension of the wire; It includes.
  • the floating wave power generation apparatus of the present invention can reduce the initial installation and construction costs compared to the pile, self-weighting, jacket-type offshore installation by mooring the floating unit with a wire.
  • Floating wave power generation device of the present invention by using a barge or a floating body as a floating unit, it is possible to recycle the waste ship and can reduce the cost.
  • the barge as a floating unit, it is easy to install and dismantle the wave power generation device.
  • the floating wave power generation device of the present invention can efficiently absorb motion in various directions because it is generated by mechanical energy transfer through a wire.
  • the floating wave power generation device of the present invention can convert all the tensions of the wires varying with respect to all directions in which the floating unit translates or rotates to energy, thereby realizing a high efficiency device. It can absorb all the energy for various movements of the floating unit.
  • Floating wave power generation device of the present invention by separating a plurality of passages by a predetermined distance, even if one passage is included in the rotary shaft of the floating unit, if the other passage is out of the position of the rotary shaft, the wire passing through the passage that is off the rotary shaft Tension may occur and energy absorption may be possible.
  • Floating wave power generation device of the present invention can reduce the installation cost of the sea because it absorbs the wave energy as electrical or hydraulic energy from the energy unit inside the floating unit to the land.
  • the floating wave power generator of the present invention can be safely evacuated during a storm by providing a safety coupling for releasing excessive tension to the wire and a display floating body which makes it possible to check the position of the anchoring portion on the sea surface.
  • FIG. 1 is a schematic view showing a floating wave power generation device of the present invention.
  • Figure 2 is a schematic comparative example for comparison with the present invention, a schematic diagram showing the relationship between the weight portion and the anchoring portion.
  • 3 is a schematic view showing the relationship between the weight part and the anchoring part of the present invention.
  • FIG. 4 is a conceptual diagram illustrating a delivery unit of the present invention.
  • FIG. 5 is a perspective view showing the floating wave power generation device of the present invention.
  • FIG. 6 is a conceptual diagram showing the relationship between the positions of the passages in the floating unit of the present invention.
  • FIG. 7 is a conceptual diagram showing the wiring of the anchoring wire in the floating unit of the present invention.
  • FIG. 8 is a front view showing a burst power generation device of the present invention.
  • FIG. 9 is a schematic view before safety evacuation of the floating wave power generation device of the present invention.
  • FIG. 10 is a schematic view after safety evacuation of the floating wave power generation device of the present invention.
  • the direction perpendicular to the sea level 11 is called a vertical direction
  • the direction included in the sea level 11 is called a horizontal direction.
  • the floating wave power generation apparatus of the present invention includes a floating unit 200 floating on the sea surface 11, a transfer unit 100 absorbing kinetic energy of the floating unit 200, and a machine absorbed in the transfer unit 100. It may include an energy unit 300 for converting energy into other kinds of energy such as electricity or hydraulic pressure.
  • the delivery unit 100 and the energy unit 300 may be provided inside the floating unit 200.
  • the diameter of the floating unit 200 may be between 5 and 15 m. This size is the most efficient way to absorb the energy of waves generated in a depth area of about 5 meters.
  • Floating unit 200 may be a barge. By using the existing barge as the floating unit 200, it is possible to use the waste barge and reduce the cost. In addition, by using the barge as the floating unit 200, it is easy to install and dismantle the power generation device.
  • the floating unit is made of a material or structure having a specific gravity less than that of water.
  • the floating unit may be made of a single material of a buoyancy material having a low specific gravity, or a frame structure for reinforcing rigidity and a buoyant material may be combined around the skeleton. This can give the entire floating unit buoyancy.
  • the floating unit 200 can float freely on the surface of the water, position restraining means for fixing the floating unit to a desired position area is required.
  • a wire, a mooring cable 601, an anchoring wire may be used.
  • the mooring cable is not connected to the delivery unit but may simply be a position restraining means for connecting the floating unit and the mooring support (603).
  • each wire may include at least one of the anchoring wire and the heavy wire shown in FIG. It may include one.
  • the anchoring wire is an example of the position restraining means connecting the transfer unit and the anchoring portion to transfer the wave energy to the transfer unit as an embodiment of FIG. 3 and below.
  • the wire shown in FIG. 1 is provided between the floating unit and the anchoring portion and is a means for transmitting the wave force to the transfer unit, and may be a position restraining means for restraining the floating position of the floating unit.
  • the floating unit may be moored at a point on the sea with wire 110.
  • the floating unit 200 may be moored by the wire 110 so as not to deviate out of a predetermined range at a point on the sea.
  • Floating wave power generation device of the present invention by mooring the floating unit 200 with the wire 110, the initial installation and construction compared to other marine facilities for fixing the floating unit 200 in the pile, self-weight, jacket type The cost can be reduced.
  • one end of the wire 110 may be connected to the anchoring portion 31, and the anchoring portion 31 may be fixed to the sea bottom surface 13.
  • the anchoring portion 31 functions to firmly fix one end of the wire 110 to a point of the sea bottom surface 13.
  • the anchoring portion 31 may be at least one of a concrete mass, a tetra-port, an anchor, a gabion, a pile, and a jacket.
  • the anchor of one end of the wire 110 is fixed to the sea bottom 13 and the gabion is placed on the anchor, one end of the wire 110 may be firmly fixed to a point of the sea bottom 13.
  • Gabions may be loaded with stone-like loads in a pocket-shaped net.
  • one end of the wire 110 may be more firmly fixed to the sea bottom 13. have.
  • the floating unit 200 that primarily absorbs wave energy as mechanical energy is not fixedly installed on the surface of the water or the sea. Since the floating unit 200 is moored by the wire 110 at sea, the floating unit 200 may perform up, down, left, or right rotational motions according to the movement of the waves.
  • the tension or length change of the wire 110 according to the up, down, left, right, or x-axis / y-axis / z-axis rotation of the floating unit 200 is primarily absorbed by the mechanical kinetic energy of the floating unit.
  • Floating wave power generation device of the present invention because it is generated through the wire 110 can efficiently absorb the movement of the various directions.
  • the floating unit 200 can perform the translational movement or the rotational movement with respect to both the translational movement in the x-axis / y-axis / z-axis direction or the rotational movement about the x-axis / y-axis / z-axis. have.
  • the tension of the wire 110 changes in all directions, it is possible to absorb all directions and all kinds of kinetic energy of the floating unit 200.
  • the change in the wave force acting on the floating unit is converted into electrical energy by the change in tension of the wire or the drum winding of the wire.
  • the translational or rotational kinetic energy of the floating unit on all axes is advantageously transferred to the energy unit by wire and used for power generation.
  • Each wire may comprise at least one of an anchoring wire and a weight wire.
  • the wire 110 may be connected to the delivery unit 100 inside the floating unit 200.
  • the wire 110 may be connected to the transfer unit 100 through the pass portions 210a, 210b, and 210c provided in the floating unit 200.
  • Passing portions (210a, 210b, 210c) may be a sliding bearing or a freely rotating pulley to minimize the frictional force acting on the wire to a minimum.
  • Passing portions (210a, 210b, 210c) may be sealed with a sealing member so as to free the movement of the wire while the sea water does not penetrate into the floating unit.
  • a mooring cable 601 can be installed as the position restraining means so that the floating unit 200 does not leave the desired position area.
  • the mooring cable is not connected to the delivery unit but may simply be a position restraining means for connecting the floating unit and the mooring support (603).
  • FIG. 1 describes the case where the wire is provided in the singular. It has already been explained that even if a single wire is installed, it can absorb the multiple degrees of freedom kinetic energy of the floating unit described above. By further improving this and providing a plurality of wires, the efficiency of absorbing plural degrees of freedom kinetic energy can be further increased. In other words, the plurality of wires provide a means for increasing energy absorption efficiency.
  • the wire 110 may be provided in plural and each end thereof may be fixed to the bottom surface 13 by the anchoring portion 31.
  • a plurality of passages 210a, 210b, and 210c may be provided as many as the number of wires 110, and each wire 110 may be connected to the transfer unit 100 through different passages 210a, 210b and 210c.
  • the passages 210a, 210b, 210c may be holes or slots that guide the wire 110 to the transfer unit 100.
  • the passages 210a, 210b, and 210c may determine a position at which the wire 110 is inserted into the floating unit from the outside of the floating unit 200.
  • the plurality of passages 210a, 210b, and 210c may be spaced apart from each other by a certain distance.
  • the positions of the through portions 210a, 210b and 210c may be spaced apart from each other at a predetermined distance.
  • the positions of the passing parts 210a, 210b, and 210c may be spaced apart from each other by a, b, and c.
  • the present invention separates the plurality of passing portions 210a, 210b, and 210c by a predetermined distance.
  • a predetermined distance As an example, referring to FIG. 6, even if the virtual central axis m of the rotational movement of the floating unit 200 passes through at least one passage portion 210a, 210b, 210c, the other passage portion 210a, 210b and 210c deviate from the central axis m of the rotational movement. Therefore, the wire 110 passing through the through portions 210a, 210b, and 210c, which deviate from the central axis m of the rotational movement, may be capable of changing tension or transmitting energy.
  • the virtual center axis m of the rotational motion of the floating unit is also referred to as the rotational axis m of the floating unit.
  • the axis of rotation m of the floating unit is an axis which is not fixed as it changes depending on the wave conditions.
  • roll, pitch, and yaw motion may be defined as rotational movement of the floating unit, or at least two or more forces of roll, pitch, and yaw movement may be defined as rotation of the floating unit. Defined as exercise.
  • the central axis (m) of the rotational motion of the floating unit may exist at a specific moment, and for convenience of description, this is defined as the rotational axis (reference numeral m in FIG. 6) of the floating unit.
  • the axis of rotation of the floating unit is an imaginary axis.
  • the present invention can convert both translational motion in the x-axis / y-axis / z-axis direction or rotational movement about the x-axis / y-axis / z-axis into electrical energy.
  • at least three or more passing parts 210a, 210b, and 210c are preferably provided.
  • the other passage portion 210b may not be included in the rotation shaft m.
  • the other pass part 210b may be spaced apart from the rotation axis m by a separation distance n.
  • the wire 110 passing through the pass part 210b spaced apart from the rotation axis m has a rotation angle of the rotation axis m and a distance n from which the pass part 210b is spaced apart from the rotation axis m.
  • the wire 110 of the passing portion 210b is pulled by the length multiplied by), and the amount of power generation of the energy unit may increase in proportion to the pulling length of the wire.
  • passages 210a, 210b and 210c are provided, and two passages 210a and 210c are disposed on a virtual straight line m and the remaining passages ( 210b may be spaced a predetermined distance n from a virtual straight line m.
  • the three facing points may be located at the vertices of the imaginary triangle.
  • the wave's wavelength is not constant but changes over time.
  • a structure capable of absorbing energy as both a translational motion in the x-axis / y-axis / z-axis direction or a rotational motion about the x-axis / y-axis / z-axis regardless of the length of the wavelength is devised.
  • the wire arrangement structure of the present invention has multi-degree of freedom energy absorption for both rotational motion and translational motion.
  • the floating unit 200 when the wavelength is twice the diameter of the floating unit 200, the floating unit 200 rises toward the apex of the wave, and when the wave passes, the floating unit 200 may descend and absorb vertical movement at a higher rate. If the wavelength is smaller than the diameter of the floating unit 200, it is possible to absorb a change in the tilt or rotational movement of the floating unit at a higher rate.
  • the plurality of wires and the predetermined spacing arrangement of the present invention are very important for high efficiency power generation, multi-degree of freedom power generation, homeostasis of power generation, environmental adaptability, and wave fluctuation response.
  • the kinetic energy of the floating unit delivered to the wire is transferred to the delivery unit.
  • the transfer unit 100 may transfer the tensile force of the wire 110 generated by the floating unit 200 in the up, down, left, right, or rotational movements by the waves to the energy unit 300 at the rear end.
  • Means are needed for restoring force to return the floating unit to its initial position or for smoothing the amount of power generation of the energy unit.
  • the delivery unit 100 may transfer some of the kinetic energy of the floating unit to the energy unit through the delivery unit, and store the other part in the energy smoothing means.
  • a weight part is mentioned as an example of an energy smoothing means.
  • the delivery unit may include a weight portion 150 that stores the kinetic energy of the floating unit as potential energy (potential energy).
  • the weight part 150 is connected to the delivery unit 100 through the wire 110, it may be located in the water between the floating unit 200 and the sea bottom (13).
  • the weight part 150 may be an object having a higher specific gravity than water.
  • the weight part 150 may vertically move with respect to the sea surface 11 in the water.
  • the weight part 150 has to receive less resistance to water because it is efficient to generate power when it is fast. Therefore, the weight part 150 may have a streamlined shape in which the diameter in the vertical direction of the sea level 11 is smaller than the diameter in the direction horizontal to the sea level 11.
  • Each wire may comprise at least one of an anchoring wire and a weight wire.
  • the anchoring wire 111 may extend from the delivery unit 100 to the anchoring portion 31.
  • the weight wire 113 may extend from the delivery unit 100 to the weight part 150.
  • the floating unit When the floating unit reaches the high point of the wave, the floating unit rises, part of the kinetic energy is transmitted to the energy unit through the anchoring wire, and the other part of the kinetic energy is stored as potential energy by raising the weight part.
  • the floating unit When the high point of the wave passes, the floating unit has a weight part as well as its own weight, and the restoring force of the floating unit is enhanced by the potential energy of the weight part. Thereby, the energy smoothing can be achieved as well as the restoring force of the floating unit with respect to the initial position.
  • the transfer unit 100 may be lifted, translated, or rotated in the floating unit 200 by the waves, so that the distance between the anchoring unit 31 and the floating unit 200 may be increased.
  • the tension may increase in the anchoring wire 111.
  • a portion of the energy applied to the anchoring wire 111 may be transferred to the energy unit 300 through the delivery unit 100.
  • the remaining part of the energy applied to the anchoring wire 111 may be stored as potential energy by lifting the weight part 150 from the bottom surface 13 through the transfer unit 100.
  • the floating unit 200 descends, translates, or rotates to return to its original position, the distance between the floating unit 200 and the anchoring part 31 may be closer, thereby reducing the tension on the anchoring wire 111.
  • the potential energy stored while the weight part 150 is lowered may be transferred to the energy unit 300.
  • the weight part 150 may be lowered to transfer power to the energy unit 300 to implement energy smoothing.
  • the transmission unit 100 includes an anchoring shaft 131 on which the anchoring wire 111 is wound, and a weight shaft 133 on which the weight wire 113 is wound, and includes the anchoring shaft 131 or the weight shaft 133 of the anchoring shaft 131. It may include a power transmission unit 130 for transmitting power to each other.
  • the anchoring wire 111 and the weight wire 113 are independent wires 110 separated from each other, and may transmit power to each other through the power transmission unit 130.
  • the anchoring wire 111 and the weight wire 113 are separated from each other to be wound around the anchoring shaft 131 and the weight shaft 133 independently of each other, and the anchoring shaft 131 and the weight shaft 133 are connected to the power transmission unit ( 130, the gear ratios can be linked differently. For example, when the anchoring shaft 131 rotates 10 times, the weight shaft 133 may be rotated once. When the anchoring shaft 131 and the weight shaft 133 are connected at different gear ratios, the length of the anchoring wire 111 and the weight wire 113 being wound or unrolled may be different.
  • the distance L1 between the floating unit 200 and the anchoring portion 31 is When the anchoring side wire 110 is changed to decrease, the distance L3 between the floating unit 200 and the weight part 150 is reduced or increased to the same length as the length L1 is increased or decreased.
  • the amount of rotation of the anchoring shaft 131 and the weight shaft 133 may vary according to the transmission ratio of the power transmission unit 130.
  • the change in the distance L1 between the floating unit 200 and the anchoring portion 31 can be larger or smaller than the change amount of L1.
  • the distance between the floating unit 200 and the anchoring portion 31 is reduced by 3 meters, the distance between the floating unit 200 and the weight portion 150 may be increased by only 1 meter.
  • the amount of rotation of the anchoring shaft 131 may be larger than the amount of rotation of the weight shaft 133.
  • the weight of the weight body may increase proportionally. In such a configuration, by shortening the distance and time required for the movement of the weight part 150, it is possible to quickly absorb wave energy even in a short wave period.
  • the weight wire 113 slightly changes in length with respect to the length change of the anchoring wire 111, the possibility that the weight part 150 collides with the floating unit 200 or the sea bottom 13 may be lowered.
  • the weight part 150 is 1 m in length, and the weight part 150 is located at the center of the floating unit 200 and the seabed surface 13.
  • the weight portion 150 may collide with the floating unit 200 or the bottom surface 13.
  • the anchoring shaft 131 and the weight shaft 133 are connected at a gear ratio of 1: 3
  • the weight unit 150 collides when the floating unit 200 is spaced apart from its original position by at least 6 m.
  • the anchoring wire 111 and the weight wire 113 is composed of a wire 110 that is independent of each other, by connecting at different gear ratios of the anchoring axis 131 and the weight axis 133, rapid energy absorption and weight parts Collision avoidance of 150 can be implemented.
  • the transmission unit 100 may transmit power to the energy unit 300 in a rotational motion.
  • the anchoring shaft 131 or the weight shaft 133 may be provided with a drum to which the anchoring wire 111 or the weight wire 113 is wound.
  • a one-way clutch may be applied between the anchoring shaft 131 and the drum to which the anchoring wire 111 is wound.
  • the drum surrounds a portion of the anchoring shaft 131, and a one-way clutch may be provided between the drum and the anchoring shaft 131.
  • the drum rotates about the anchoring axis 131 in the rotational direction in which the anchoring wire 111 is wound, and transmits a force to the anchoring shaft 131 in the rotational direction in which the anchoring wire 111 is released.
  • a one-way clutch may be applied between the weight shaft 133 and the drum to which the weight wire 113 is wound.
  • the drum surrounds a portion of the weight shaft 133, and a one-way clutch may be provided between the drum and the weight shaft 133.
  • the drum rotates about the weight axis 133 in the rotational direction in which the weight wire 113 is wound, and transmits the force to the weight axis 133 in the rotational direction in which the weight wire 113 is loosened, and the weight axis 133. It can rotate as That is, when the weight part 150 is lowered to solve the potential energy, the weight axis 133 and the drum rotate together, and when the weight part 150 rises, the drum and the weight axis are idling with each other. Can be.
  • a plurality of weight wires 113 may be connected to one weight shaft 133.
  • a plurality of anchoring wires 111 may be connected to one anchoring shaft 131. Therefore, the power of each of the wires 110 may reinforce each other while rotating the weight shaft 133 or the anchoring shaft 131 to smooth energy.
  • Rotational power of the weight shaft 133 or the anchoring shaft 131 may be transmitted to the energy unit 300.
  • Each of the drum to which the weight wire 113 or the anchoring wire 111 is wound may be connected to the weight shaft 133 or the anchoring shaft 131 by a one-way clutch, respectively. Therefore, even if there is no power to be transmitted by some of the wires 110 of the plurality of wires 110, if there is power to be transmitted by the remaining wire 110, the energy of the wire 110 of the highest power by the one-way clutch energy unit Since the movement of the other wire 110 is not disturbed while being transmitted to 300, the floating wave power generation device of the present invention may be capable of energy smoothing.
  • the energy unit 300 may receive power from the transfer unit 100 and store the received power as electric or hydraulic energy. Energy stored as stored electrical or hydraulic energy may be delivered to the land via energy transfer cable 311.
  • the energy transfer cable 311 may be a wire.
  • the energy transfer cable 311 may be a hydraulic hose.
  • the floating wave power generation apparatus of the present invention reduces the installation cost in the marine environment because the wave energy is converted into electrical or hydraulic energy in the energy unit 300 inside the floating unit 200 and transferred to the land or fixed structure. You can.
  • coastal topography with gentle depths can be very far from the installation site of the floating wave generator.
  • the cost of installation may increase if power is taken to the job ground and generated.
  • the installation of power generation facilities on land in the case of sheer cliff topography may increase installation costs.
  • the floating wave power generation apparatus of the present invention generates power at sea to deliver the processed energy to the ground by electric or hydraulic, it is possible to save the installation cost.
  • the passage portions 210a, 210b, and 210c which are positions where the anchoring wires 111 enter the outside of the floating unit 200, should be spaced apart from each other, and the plurality of anchoring wires 111 are one. It can be wound around the anchoring axis 131 of.
  • One end of the wire connected to the floating unit 200 is anchored to the seabed outside of the floating unit, so that the other end of the wire is directed toward the floating unit from the position where the one end of the wire is anchored.
  • the wires located on the outside of the floating unit have a large distance from each other, but the ends of the wires converge toward the floating unit.
  • these wires are concentrated in the direction toward the transfer unit and the energy unit inside the floating unit.
  • the floating unit 200 may include a direction change unit 230 for collecting the anchoring wire 111 into one place.
  • the direction switching unit 230 may be a pulley, a sliding bearing, and a guide pipe as a means for bending or bending while maintaining the tension of the anchoring wire 111.
  • the floating wave power generation device of the present invention may be provided with a configuration for safety evacuation.
  • a configuration for safety evacuation In the event of excessive waves such as storms at sea, leaving the floating wave power generator in place can destroy the device in a storm. It is also difficult to receive the kinetic energy of waves during a storm. Therefore, there is a need for means to prepare for bad weather such as storms.
  • a safety coupling 170 for relieving excessive tension of the wire 110 and a display floating body 180 for confirming the position of the anchoring portion 31 on the sea surface 11 are provided. Can be.
  • FIG. 9 shows the state of the floating wave power generation device before the storm.
  • 10 shows a floating wave power generator after bombing.
  • the safety coupling 170 may be provided at the anchoring wire 111 between the floating unit 200 and the anchoring portion 31. When excessive tension is sensed in the anchoring wire 111, the safety coupling 170 may be released to disconnect the anchoring wire 111 between the floating unit 200 and the anchoring portion 31. When the anchoring wire 111 is disconnected, the floating unit 200 may be evacuated to a place not affected by the storm.
  • the display floating body 180 When the anchoring wire 111 is disconnected, the display floating body 180 may be installed at the anchoring wire 111 on the side of the anchoring portion 31 of the two anchoring wires 111. Since the display floater 180 is installed on the anchoring wire 111, one end of the anchoring wire 111 may be positioned on the sea surface 11 after a storm passes. Therefore, the position of the anchoring portion 31 can be easily confirmed at the time of re-installation, and the submerging operation can be omitted to rescue the anchoring wire 111.
  • Safe evacuation includes the steps of installing the display float 180 on the anchoring wire 111, lifting the weight 150, releasing the safety coupling 170, evacuating the floating unit 200 It may include.
  • the towing vessel may tow the floating unit to evacuate the floating unit to a safe place such as a breakwater.
  • the anchoring wire or anchoring portion is less likely to be damaged in a storm and remains in its original position at sea because the evacuated floating unit has to be reconnected upon return.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

Cette invention concerne un dispositif flottant de génération d'énergie houlomotrice, comprenant : une unité flottante flottant sur la surface de la mer ; une unité d'énergie conçue pour convertir l'énergie cinétique de l'unité flottante en énergie électrique ou en énergie hydraulique ; et une unité de transfert pour transférer l'énergie cinétique de l'unité flottante vers l'unité d'énergie.
PCT/KR2016/002127 2015-06-24 2016-03-03 Dispositif flottant de génération d'énergie houlomotrice WO2016208843A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16814556.3A EP3315766A1 (fr) 2015-06-24 2016-03-03 Dispositif flottant de génération d'énergie houlomotrice
US15/739,954 US10590905B2 (en) 2015-06-24 2016-03-03 Floating apparatus for wave power generation
CN201680038598.0A CN107896503B (zh) 2015-06-24 2016-03-03 浮动式波力发电装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0089620 2015-06-24
KR1020150089620A KR101749036B1 (ko) 2015-06-24 2015-06-24 부유식 파력 발전 장치

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EP (1) EP3315766A1 (fr)
KR (1) KR101749036B1 (fr)
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KR101971277B1 (ko) * 2017-11-02 2019-08-27 임채경 해안 고정식 파력 발전장치
CN108443415B (zh) * 2018-01-16 2020-05-19 中国航空规划设计研究总院有限公司 用于鱼线固定的线盒式成套工具及其固定方法
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KR101749036B1 (ko) 2017-06-21
CN107896503A (zh) 2018-04-10
US10590905B2 (en) 2020-03-17
KR20170000566A (ko) 2017-01-03
US20180187644A1 (en) 2018-07-05
EP3315766A1 (fr) 2018-05-02
CN107896503B (zh) 2020-09-22

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